I'm curious how looking at RAX tells you that. Its certainly possible; every once in a blue moon I get a random BSOD that I suspect is from a bad ram module, but I've never been able to catch it with memtest.

Walked back into roboport supply range, was waiting for robots to finish resupplying me, autosave popped up, got about half way then crashed. I attached the last 2 modified auto saves. I assume the tmp is the one that was in the process of saving and is now corrupt.